Loader.



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BHEEYS-SHEET l.

gnuenfo/L V. G. HALBY.

LOADER. APPLICATION HLED MAR. 2s. mls.

Patented Oct. 23, 1917.

7SHEETS*SHEET 2.

V. G. HLBY.

LOADER. MPLICATION FILED MAH. 28. |916.

w. Patented oct. 23, 1mi

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Waff@ Gf v. G. Hmm. poans. APPLICATION FILEU NAW. 2B @Sl- 1,244,199 www@om 23, my

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"p www mi, W@ WzL/M@ @No z u c x4 V. G. HALBY.

LOADER.

APPLICATION man MAR. z8. vsn. 1,244,199. Patente@ om; 23,1sm.

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IJDER.

APPLlcATloN man MAR.28.-1916.

@$44,199. Patented 001123,1917.

isHEf'Ts-SHEET s.

,attorney @ya www@ V. G. HALBY.

LOADER.

APPLICATION FILED MAR. 28. :916.

LMJQQ. Patented oet. 23, 12m

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vree@ c. Hanny, or transcurre, Micnroan, assrenon 'ro EUREKA ktaccuino@s Enorm-:name coureur, or cnrs'rar. FALLS', iarcnroen, a conronATIoN ormeurt-inn'.

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rigina. application filed April 26, 1915,

To all whom t may concern:

ABe it known that l, Visco G. HALBY, a

.citizen or' the United States, residing at .april ee, .1.915.

lhe'present application is directed particularly. to thel conveyor anddischarge mechanism embodied 1n the machine illusv. trated, and theaccompanying drawings illustrate my improved loader in sullicient detailto enable the invention herein claimed to be understood. lThe machineillustrated is adapted to operate in mine workings, tunnels, and inanalogous situations where the room is limited.v While the machine isparticularly-well adapted for use where the head-room is low it ma beadvantaofeo'usl used in open places for the loadingr of loose ore,"earth, sand.gravel and the like materials; and. also forv excavatingand loading` loose earth, sand, gravel and other easily loosenedmaterials. Y f

v Figure 1 represents a side elevational view of a loader embodying' myinvention, Aone part being' shown b'rokenly; Fig. 2, a longitudinalsectional View of the machine, the section being taken as indicated atline 2 of Fig. 3; Fig. 3, a broken plan 'View of the machine; Fig. a, aplan sectional view Ataken as indicated at line4 of Fig. l; Fig'. 5, avertical sectional view taken as indicated at line 5 of Finn/1; Fig. 6,an enlarged longitudinal Avertical section taken as indicated at line Gof Fig'. 4; Fig. 7 an. enlarged transverse vertical sectional viewvtaken as indicated at line 'Tof Fig. 4.; Fig. 8, a broken plan viewshowing1 a joint with which the conveyer-- frame is provided and one oithe trunn-ions Lemma.

Specification. of'Letters Batent. n Patented, Get. 23, 1917.

Serial No. 24,120. Divided and this 1916. Serial No. 87,177.

application le March 28,

and Fig. ll, a broken plan View, lpartly dia-.-v

grammatic, showing the deiect'ors or discharge device employed at thedischarge end of the conveyer.

The machine, in the embodiment illustrated, comprises three mainelements, viz.,

a power-actuated truck A. which is mounted on a track A1 and 'which isat vall 'times Withm the control of the operator; anintermediate frameor car-body B equippedwithl frame B, the frame of said conveyer mech-rkanism being connected with conveyor-tilting mechanism `mounted on thefront porticnof thecar-body B.

A. shovel JD is mounted on the front endo of the conveyor mechanism and'carried and actuated by shovel-actuating` mechanism D1, said shovelbeing adapted to discharge the materials rearwardly upon theendless-conveyer-belt of the conveyor mechanism C. An oscillating chuteor distributer D2 is mounted on the frame of the conveyor mechanism andserves to receive the materials from the shovelL and distributethem`upon the conveye'r belt.

The rear end of the conveyer-frame car ries a discharge device E, whichin theform illustrated comprises a pair of deilectors which swing; uponsubstantially longitudinal axes and serve to direct the materials in adirection opposite thatin which the front end of the conveyor mechanismmay be i swung wheny the shovel is being filled. The purpose 1s todirect the materials, as they are discharged from the conveyor belt,into a burden-car mounted on the track in the rea-r ofthe truck A andcoupled to the truck. n

The truck-frame A and superposed body B are of comparatively shortlength; and the body B is surmounted by the conveyor mechanism C whichhas a forwardly and down- .wardly-inclined front portion which projectsin front of the truck, and a substantially horizontal rear portion whichoverl hangs or projects in the rear of the truck.

The truck, the car-body, and the boom or conveyer-fsa1ne are made strongand substantial, in order to withstand the stresses when the truck ispropelled forwardly, ac-

cording to the preferred method of opera-l posite end with a pinion 3Q;a counter-shaft 4 driven from the pinion 3c through the medium of a,large spur-gear Il, the countershaft 4 being e uipped with asprocketwheel 4b from which powerjs transmitted through a chain 5 to theendless conveyer, itbeing noted that the sprocket-Wheel 4b is formedintegrally with a sleeve journaled,

on the shaft 4 and equipped with clutch mechanism 4c, whereby thesprocket-wheel 4* may be connected, at will, to rotate with the shaft 4;a sprocket-chain 6 connecting the sprocket-Wheel 3" with asprocket\vlieel 7 secured on the outer end of a shaftS, the shaft 8being equipped near the longitudinal center of the machine with a pinion9, a shaft 10 driven from the pinion 9 by means of a pinion 11; gears 12secured on the shaft 10 near the ends thereof andserving to rotate gears13 and 14 Which are journaled to turn freely on shafts 15 and 16, whoseinner ends are equipped with bevel-gears 17 and 18, which engage anintermediate-ly disposed bevel-gear 19 which is secured to a verticalshaft 20 which is journaled concentric with the swivel connection 1between the rear end of the truck and the rear end of the body B;clutch-devices 21 and 22, mounted on the shafts 15 and 16 and serving toconneet either one of the gears 13 and 14, at will, so as to cause'thecorresponding shaft 15 or 16 to rotate; a longitudinally-disposedworm-shaft 23 journaled in the truck A and actuated from the bevel-gear1li" through the medium of a bevelgear 2st, the worm-shaft 23 beingequipped with worms which mesh withworni-whecls 25 secured oiaxles 26 towhich the traction-wheels 27 of the t: uch are secured; a shaft 28actuated from 'the spur-gear 9 through the medium of a spur-gear 29, theopposite ends of the shaft 28 being equipped with bevel-gears 30 and 31;1nccliunism for controlling the lataffords a safety feature interposedin the eral swing of the body B about the swivel 6 connection 1,comprising a longitudinal tubular shaft 32 (Figs. 4 and 6); a pair ofbevel-gears 33 and 34 actuated by the bevelgear 30 and journalcd to turnfreely on the shaft 32, clutcli-devices 35 and mounted on the shaft 32and adapted to connect either one of the gears 33 or 34. with the shaft32, thereby to cause the shaft 32 to rotate in either direction, atwill; a. clutchshifting rod 37 extending through the shaft 7 32 andwhich may be shifted by means of an arm or yoke 38 secured on atransverselyextending rock-sleeve 39, which, in turn, is journaled on arock-shaft 40, the roclr-sleeve 39 being controlled by a lever 39 (Fig.45) and the rockeshaft 40-being controlled by a lever 40% a Worm 41secured on the front portion of the tubular shaft 32 and serving t0aetuate a Worm-Wheel 42 which is formed integrally with a sleeve 42having :1 bevel pinion 42h which meshes with a co-acting pinion 43secured on the upper end of a vertical shaft 44 Whose lower end isequipped with a pinion 45 which engages a curved segmental rack 16 whichis fixedly secured to the` truck-frame near the front end thereof,aswill be understood from Figs. 1 and 5; a pair of bevel-gears 47 and 48actuated by the bevel pinion 31 and journaled freely on a longitudinaltubular shaft 49, the gears t7 and 48 being controlled by clutch-devices50 and 51,which are similar to the clutclrdevices 35 and 36, and whichare actuated by means of the longitudinal clutclrshifting rod controlledby an arm or yoke 53 (Fig. 1) which is secured on the inner extremity ofthe rockshaft 40; and a worm 5-t secured on the front end of the tubularshaft 4.() and which serves to actuate a Worin-gear which is journalcdon a transverse shaft 56 (Fig. T), the shaft 56 being equipped at itsends with piuions 57 which engage rack-bars 58 whose upper ends areconnected, by pivots 59, with the boom or frame of the conveyer C. The

worm-wheel 55 is journalcd freely on the shaft 56 and is equipped withinternal ratchet-teeth 60 which comet with a pawl 61 carried by amounting 62 which is splined on the shaft 56. This form of connectionmechanism for raising and lowering the boom,the ratchet-devicepermitting slippage in the event that the shovel, in its descent,strikes an obstruction, such as would arrest or tend to elevate thefront end of the boom.

As has been indicated, the clutches 21 and (Fig. control the propellingmechanism of the machine, that is, the traction mechanism. The clutches21 and 22 are, in turn, controlled by yokes 63 and 6l carried byhmgitudinal rock-shafts 65 and 66, which have their rear ends equippedwith bevel-gears which engage bevel-gears 6T seyis ously operated.

naar:

cured on a transverse cock-shaft 6.8 which is actuated by an arm 69joined by a connectingl r-d 70 to the lever 71.

From the foregoing, it will be1 ui'iderstood that the machine ispropelled or driven on the track A1 by propelling mechanism controlledbythe lever 71; rthat the lateral swing of the intermediate frame orcar-body on thetruck is controlled by the lever 39a; and that theraisingand lowering of theboom is controlled by the levercOa-#theseseveral levers being conveniently mounted with relationto the platform 72 upon which the operator stands.

The dut/e114 may be thrown to clutch the sprocket-wheel 4J `to the shaft4, so that the conveyer driving chain 5 will be continu-- Any suitablemeans as a handlever 148, maybe employed for operatingtheolutch 4t.

The front portion of the-frame of the conveyer mechanism C affords aboom, on the front part of which the shovel mechanism is mounted'. rEheboom frame comprises the incline'dlongitudinal front side-members 73which are provided at their rear ends with the tubular trunnions 2 whichare received in substantial bearings 74 with which the rear upperportionoi the intermediate frame or body B is provided; and rearsidemenr bers 75 which are pivoted on inwardl extensionsA of thevtrunnions 2. As will be understood from Figs. 8 and 9,ithe-rear pcrtionof the conveyereframe is adapted to counterbalance, to a large extent,the front portion of the conveyer-frame, or boem. Articulate connectionsare employed be tween the ramefmembers 73 and 75, however; and theconstruction is such that the counter-balancing eii'ect will be secureduntil the front end of the boom is raised a certain distance, when therear frame-member 7 5 will rest upon shoulders 76 with which theintermediate frame'B is provided in the rear of the trunnions 2. Themembers 7 5, whose front ends are journaled concentrically with thetrunnions 2, are equipped with adjustable stops or set-screws 77 whichbear upon shoulders or knuckles 78, with "which the members 73 areequipped in the rear of the trunnion connections. Thus,the

frame-.members 75 will be supported normally, through the medium of theset-screws 77, on the shoulders or short arms of the framemembers 73;but should the front ends of the frame-members 73 be unduly raised, themembers 75 would rest upon the4 shoulders 76,\when the rear end oftheconveyer is in substantially a horizontal position. 1.

Journaled in the trunnions 2 and concentric therewith yis a.conveyer-.actuating shaft 79 equipped with a sprocket-wheel 80, which isactuated by the sprocket-chain 5. Power rllhe endless conveyer passes`over=and about suitable idlers, and has its front end mounted on a drum88 carried by a shaft 89 the l journaled in short standards carried by'cross-member 90 (F which is secured to the front ends ofthe'fside-members 73 of `the boonrframe, and as hasbeen indicated, theshovel D is carried by the Vshovel"-actuatn ing mechanism D1 mounted onthev front portion of the boom-frame.V vThe shovelactuating mechanismincludes a pair "of large gears 91 supported on the ranielniembers 7 3of the boom and actuated by }`)ini'onsh` from. the shaft 79 by asprocket-chain*93. The shovel-actuating mechanism need notbe describedin detail. lt is sulicient 'to'say that theshovel is carried by acrank-shaft 94 actuated from the gears D1 by pitmen 9,5 ,"5

and as the upperrear end of the shaft is carried in'an orbital path bythe crankshaft 94, the shovel is caused to turn aboutQitsorbitally-inoving pivot by means ofthrust-,vy L, rods 96, which areactuated by the -gears" 91. The arrangenfientv is such that-alitertheshovel is filled the point-end of the'shovel continues to rise, and thematerials aigedischarged through the rear end of theshovel .h

into the distributer D2, by means of which they are distributed on theconveyer belt,`

f ifhe shaft 85, which carries thefdr'um about which the upper endet theendless conveyer passes, is mount-edili adjustable@ bearings 132 carriedby the `rear framemembers 75 of the @meyer-frame, .the

bearings 132 being adjusted by meansofadl:

justing-devices 133. This enables the proper tension to be given to theconveyer-belt, and 1;

`it will be understood that lthe extensible shaft 84, through .whichmotion Ais c oinmunixcated tothe shaft 85, has its length automaticallyadjusted vin accordance with .the

adjustment 'of the bearings 132g Corresupported on idlers as to curvethe beltiin cross-section, in the manner illustratedqin Fig. 5, thustending to keep the-materials on the belt. v

As will be understood from Figs. 1, 10

The upper or operative l i detlector-members 135 are given an oppositeThe result is to direct the malevers of the machine.

and 11, the rear end of the conveyer-frame is preferably equipped withpair of guidemembers orA chute-members 135, which are automa tcallyswung upon longitudinal, substantially horizontal axes, so that thelowerends .of the members or delectors 135 will pointin the oppositedirection from the direction in which the rear end of the conveyerswings when the intermediate frame or carbody B has its front end swunglaterally to direct the shovel to one side or the other of the track.The purpose of the deleetors 135 to direct the materials discharged fromthe rear end of the conveyer-belt toward the center of the car which isbeing filled, re-` gardless of the lateral swing of the rear end of theconveyer. Each member 135 is xedly secured to a. shaft 136 mounted inbearings 137 with which the rear members 75 of the conveyor-frame areequipped. The front ends of the shafts 13G are fitted with arms orsegments 138, by means of which the shafts may be turned. A. rope orflexible connection 139 passes about the drum or sleeve d2, which formsa part of the mechanism for swinging the intermediate frame B laterally;and the ends of this rope, after passingabout suitable guide-rollers140, are connected with the arms or segments 138. T he arrangement issuch that when the drum 42 is turned in such direction as to swing therear end of the conveyor mechanism to one side of the track, thedefiectors 135 will be given such inclination as to cause their lowerends to point in the direction opposite that in which the rear end ofthe conveyer has been swung. When the conveyer is swung in the oppositedirection, the

inclination. terials to the center of a burden-car (none Shonf'n) whichmay be located on the track A1 beneath the disrhargespout or deilectorsi235. These members are connected at their lower edges by a link 135, sothat they will Swing together in one direction or the other, dependingupon which portion of the rope 139 is being wound upon thedrum 4923.

The operation may be described briefly:

The operator stands ou the platform 72, Within convenient reach `of thecontrolling After starting the motor 3, the clutch 4 is operated toconnect the sprocket-wheel Ll" with the continuously rotating shaft 4.The clutch Il is shifted by the lever 148. Power is communicated'thiough the sprocketchain 5 and imparts continuous motion to theendless conveyor and the shovel-actuating mechanism. it be ing notedthat power is transmitted through the sprocket-chain 93 and shaft 92, sothat the main gear wheels 91 will be continuously rotated, thusactuating the shovel. The Shovel is filled, inverted, and dischargedthrough the reciprocatingmember E on to the front end of theconveyer-belt.

The ope ator controls the traction mechanism in such manner as to causethe machine to move forward at the moment that the shovel enters thematerials, so that the momentum of the machine is added to the thrustimparted to the shovel by the shoveln actuating mechanism. Thus, themachine is periodically retracted and advanced, this action being timedto correspond with the action'of the shovel, so that the Whole machineis given a chugging action which greatly aids in the operation offilling the shovel. The propellingr mechanismot the machine iscontrolled by the lever 71, which controls the clutches 21 and in themanner hereinbefore described.` The operator controls the lateral swingof the interme. diate frame or body B by means of the lever 39, whichcontrols the clutches 35 and 36, which regulate the direction ofrotation of the Worm-wheel 42 and the consequent direction of rotationof the vertical shaftl 44, whose pinion 45 meshes with the rack 46. Bythis mechanism, the boom isiswung laterally in either direction ttoenable the shovel to follow and gather the materials. The raising andlowering of the front end of the boom is controlled by the lever40f,`\vhich controls the clutches and lil, which regulate the directionof rotationv of the wormwheel 55,Vr it having been explained that poweris communicated from the worm wheel to the pinion-equipped shaft 56which operates the racks 58. The racks 58 are struck on a radius fromthe axis 79 about which the boom swings, and the rack 4G, which forms apart of the mechanism Lfor swinging the intermediate frame B luterally,is struck on a radius from the axis of the swivel 1, which is also trueof the segmental track l. The front end of the intermediate frame B isequipped with roll ers 147, which travel on the track l, as illustratedin Fig. 4.

When the front end of the conveyeris turned to one side of the track,the discharge device E carried by the rear end of the conveyor mechanismis turned in such direction as to counteract the effect of swinging theconveyor mechanism laterally, so that the discharging materials will bedi-l rected to the center of the track and Vwill fall in the burden-carmounted on the track in the rear of the shoueling machine. This movementof the deiiectors composing the ffliseharge mechanism E is automaticallyconermissible in View ot the )rior art. l

What l regard as new, and desire to secure by Letters Patent, is f 1. lna loader, the combination of a truck, a conveyer-frame mounted thereon,mechanism for causing'the front end of: the con- Veyer-frame to swinglaterally, and automatically actuated discharge mechanism (iperating todirect the materials discharged from the conveyer mechanism toward acentral point7 regardless of the position of the conveyer mechanism.

2. In a ioaderhthe combination of truck.,

a laterally-swinging frame mounted thereom conveyer mechanism mounted onsaid laterally-swing1ng 'rame, mechanism for .swinging thelaterally-swinging trame, a discharge device carried by the rear portionof thev conveyor, and means for automatically varying the position ofthe discharge device to counteract the elect of the lateral swing oflthe conveyer mechanism, for the purpose set forth. A

3. In a loader, the combination of a truck, a laterally-swinging framemounted thereon, a conveyor-frame mounted on said laterallyswingingframe, mechanism for swinging the laterally-swinging frame,chute-members connected with the rear portion of the conveyer, and meansfor changing the inclination of said chute-members in the operation ofswinging said laterally-swinging frame.

4. ln a loader, the combination of a truck,

an vintermediate frame swiveled thereon, a

conveyer-framev mounted on said intermediate frame and comprising aninclined front-section projecting in front of the truck and a rearsection projecting in the rear of the truck, mechanism for swinging thefront end of said intermediate frame laterally, chuteemembers carried bylongitudinal piw ots mounted at the rear end of the rearconveyer-section, and means for changing the inclination of saidchute-members in the operation of swinging said intermediate framelaterally.

VIGGO G. HALBY.

